Apparatus for extracting tin from tin scraps.



APPLIUATION FILED NOV. 17, 190B.

' Patented July 26, 1910.

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APPLICATION FILED NOV. 17, 1908.

Patented July'zs, 1910.

2 SHEETS-SHEET 2.

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Specication of Letters Pate-nt.: Pgmj.lppnpbiggaijll July 2H, 191W,

.application filed November 17, 1908. Serial No." aGiSQSQ Be it knownthat l, Ennnson C. Hisawa,

a citizen' of the United States, residing at Bayonne, in the county ofHudson and State of New Jersey, have inventedA certain new l and usefulllmprovements in Apparatus forv Extracting Tinvfrom Tin Scraps, of whichl the following is a s ecication.

\ This invention re fates to an improved "ap- `params for extracting tinfrom` tin scraps, web. as old tin1 cansfor example, and has for itsobject a simple' and economical means for accomplishing the result.;

lin the following is described', in connection with'tlieaccompanyingdrawings, one

ing air openings' (not. shown) in its sides .and provided with a bearing2 for shaft 3'.

4 is a ball bearing interposed between bearing 2 and collar 5. Shaft 3is adapted to be driven by any 4suitable means (not shown). Gear wheel 6is mounted-on shaft 3 andl is adapted' to engage gear Wheel 7 keyed tobearing 8` which supports basket 9. l0 is a plate' or table resting onthe top of standard l and adapted to `support aV receptacle 11,preferably circular in form. Within receptacle 11 and concentrictherewith is a Wall 12 so spaced from receptacle l1 as to leave an airlspace'131between the two. A cover liis adaptedv rest on receptacle llandcover-the. top .fof the same.

15 is a false top adapted to leave an air space 16 between cover 14andthe atmosphere. Air spaces 13 and-16 may be packed with somenonconducting material such as asbestos to confine as much heat aspossible within the apparatus.

17 is a cover adapted to close a central aperture in cover-14 wherebyaccess may be had to basket 9.

artly broken away; `and y .imperforate "Bearing 8l carrying gear i issupported from beneath by a suitable tbrust'bearing restingfon casting18 fastened to the bottom ,of base or standard 1.

19 is a casting resting on casting-18 and adapted to support ,a suitablebronzebearing 20. The thrust Abearing comprises a flanged collar 21fastened to a neck piece 22 which in'turn is fastened to gear 7. The

thrust bearingis. provided with the usual retective bearings to overcomefriction. carin 8, gear 7 and the thrust bearing are central y aperturedto permit'the passage of pipes 23, 24 and 25 which are respectivelyadapted to convey air, fuel and water into the apparatus. Pipe 23 ispreferably flared at the top in order to throw the flame outward.` ATheair, fuel and water may be supplied under pressure from any suitablecontainers (not shown).

Pipe 25 is closed at the top and near the top is'provided with openings26 to permit the water t0 be forced out and against the inner face ofbearing 8. The space between bearing 8 and pipe 25 is closed at the topthe water running out into the interior of base 1,*through pipes 27between neck 22 and collar 2l. Pipe 28 `conducts this Waste Water orother liquid from the interior of base 1 to any suitable point.` Bearing8 turns in a' suitable frictionbearing 29 sup ported from ring 30 onplate l0. Friction.

bearing29 is surrounded by a water jacket 31 to 4which Water is suppliedunder pressure from any suitable source through a pipe 3,2.

fOpenings 33 permit the Water to clrculate 3l. Pipe 36 is 'adapted -toconvey oil from anysuitable supply to bearing 29 and preferably passesthrough pipe 35 in order that the oil in pipe 36 may be kept cool by the.r

Water in pipe 35.'

Basket 9 is provided With a centrally arranged combustion chamber 37,preferably in the form ofa truncated' coneas shown.'

The combustion chamber 37 is closed at the top by asuit-able cover'38and is preferably Combustion chamber 37 is preferably flanged at thebottoni as at 39,

ribs 40 of` basket 9 being clamped between ange 39 and bearing 8. Aspace 4l is thus 25 in order to deflect the water through holes leftbetween bearing `8 and lange'39 which from which thetin is to beremoved.

is adapted to protect bearing 8 from the heat. Ribs 40 are surrounded byand sup port a suitable wire mesh 4l preferably he d in place byreinforcing strips 42.

Ribs 43, preferably the same 1n number as ribs 40, are adapted to .forma false bottom on which rests the bundles of tinV scrapAs cover 44closes the top of basket 9.

45 is an opening through which the tin may be vdischarged fromreceptacle 11, A 46 is an oil hole for supplying oil to bearing 2.

47 is a protectingflange fastened to pipe 27 and to prevent it fromescaping down into the lower bearings.

The operation o`f the apparatus is as follows: The covers 17, 88 and 44being removed, the bundle of tin scraps is thrown into basket 9, restingon the false bottom formed by ribs 43. The air and the fuel supply,preferably `gas' under pressure, is

then admitted Yto the combustion chamber through pipes 28 and 24respectively, 'and the water for cooling the bearings is turned on. Thefuel is' then ignited and the lcovers replaced. The products ofcombustion escape from the combustion chamberl as by leakage. Poweristhen applied to shaft 3, causing the basket 9 to be rapidly rotatedthrough the means disclosed. The speed of rotation is preferably 650revolutions per minute. The walls of the combustion chamber becomeheated sufficiently to radiate heat in the basket at a temperaturesuhcient to melt the tin, although the ame does not contact with the'tin and hence cannot oXidize the same. The space between the falsebottom formed by ribs 43 and the bottom of` basket 9 permits theradiated heat to easily pass up through the tin vfrom beneath as well asthrough the upwardly extending walls of the combustion chamber. Themelted tin is thrown olf the scraps and out of basket 9 through wiremesh 41 and against wall12 by centrifugal force. The tin is permittedtocool and may from time to time be removed through openings 45.

It is obvious that t-he details of Iconstruction may be considerablyvaried withoutdeparting from the spirit of the invention and I do notrestrict myself to the specific means shown. v

What I claim and desi-re to secure by Letters Patent is:

l. In an apparatus of the 'character described, a rotatablebasket, ribsforming a false bottom therein, a bearing for said basket, agear on saidbearing and means for driving said gear.

2. In an apparatusof the character de' scribed, a rotatable basket, abearing therescribed, a rotatable basket, a bearing therefor, a waterjacket around a ortion of said bearing, a discharge pipe or said waterjacket, means for conveying oil to said bearing through said dischargepipe, a gear on said bearlng and means for driving said gear.

-4. In an a aratus of the character described, a double walledreceptacle, non-heat conducting. material between said walls and arotatably supported basket within said re ceptacle.

5, In an apparatus of the character described, a rotatably supportedbasket, a centrally apertured bearing therefor, a plurality ofconcentric pipes within said bearing, means permitting water to flowfrom one of said pipes around the inside of said bearing and' means fordischarging said water.

6. In an apparatus 0f the character described, a rotatably sup ortedbasket, a bearing therefor, means 'or admitting water within saidbearing and means moving with said bearing for discharging the watertherefrom.

7. In an apparatus of the character described, a rotatably supportedbasket, a. centrally arranged combustion chamber witha gear on saidbearing and means in said basket, a centrally apertured bearing for saidbasket and concentrically arranged pipes in said bearing, one of saidpipes being adapted to conduct fuel and another of ksaid pipes beingadapted to convey air t0 said combustion chamber and both of said pipesHaring outwardly at the top.

8..In an apparatus of the character described, a rotatably supportedbasket, a centrally arranged closed combustion chamber within saidbasket, means for supplying fuel to said combustionchamber and meanslfor directing the flame against the walls of said combustion chamber.

9. In an apparatus of the character desfribed, -a rotatably supportedbasket, a

cover therefor, a centrally arranged combusy tion chamber in saidbasket, a cover therefor and a false bottom within said basket, the

space between the basket proper and the alse bottom forming a heatradiating cham- 10. In an apparatus of the character described, arotatably supported basket, a centrally apertured bearing therefor,means for supplying water to the inside of said bearing, means fordischargin the water from said bearing and means or deiecting the waterinto said last named means.

1l. In an apparatus of the character described, a horizontally rotatablebasket, a vertical bearing therefor, anV imperforate Walled combustionlchamber within said In testimony whereof I have hereunto basket, a gearon said vertical bearing and signed my name in the presence of two sub10 means for driving said gear. scrbing Witnesses. l

12. In an' apparatus of the character de- EMERSON CORSO'N I 'IGIGIINS` 5scribed, a rotatably supported basket, a bearing therefor, a Waterjacket .around said` Witnessest bea-ring and means for supplying waterto K. G. LE Ann,- the inside of Said bearing. e E. P. LA GAY.

